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TOOLS: Numbers Crunched While You Wait

Most Web surfers already spend plenty of time hanging out at the Google home page—or at least passing through. Now Google's search box doubles as a handy scientific calculator, performing mathematical functions such as logarithms, sines, cosines, factorials, and exponents. You can also enter almost any conversion, whether it's “500 calories in joules” or “20,000 leagues in light-years.” For details on possible queries, see: